Plebanski-Demianski solutions with dynamical torsion and nonmetricity fields

被引:10
|
作者
Bahamonde, Sebastian [1 ,2 ]
Valcarcel, Jorge Gigante [2 ]
Jarv, Laur [2 ]
机构
[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, 1-12-1 Ookayama, Tokyo 1528551, Japan
[2] Univ Tartu, Inst Phys, Lab Theoret Phys, W Ostwaldi 1, EE-50411 Tartu, Estonia
关键词
Exact solutions; black holes and black hole thermodynamics in GR and beyond; GR black holes; gravity; modified gravity; GRAVITY; SPACE; IDENTITIES; EQUATIONS; MODELS; SPIN;
D O I
10.1088/1475-7516/2022/04/011
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We construct Plebanski-Demianski stationary and axisymmetric solutions with two expanding and double principal null directions in the framework of Metric-Affine gauge theory of gravity. Starting from the new improved form of the metric with vanishing cosmological constant recently achieved by PodolskATIN SMALL LETTER Y WITH ACUTE and VratnATIN SMALL LETTER Y WITH ACUTE, we extend this form in the presence of a cosmological constant and derive the conditions under which the physical sources of the torsion and nonmetricity tensors provide dynamical contributions preserving it in Weyl-Cartan geometry. The resulting black hole configurations are characterised by the mass, orbital angular momentum, acceleration, NUT parameter, cosmological constant and electromagnetic charges of the Riemannian sector of the theory, as well as by the spin and dilation charges of the torsion and nonmetricity fields. The former is subject to a constraint representing a decoupling limit with the parameters responsible of axial symmetry, beyond which the geometry of the space-time is expected to be corrected.
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页数:24
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